#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
#include<stdlib.h>
typedef int SLDataType;
typedef struct SLNode
{
	SLDataType data;
	struct SLNode* next;
}SLNode;
void SLprint(SLNode* plist);
void SLPushFront(SLNode** pplist, SLDataType x);